2 x button battery holders with a top fitting for the batteries.

These are idea for providing a power source when using 3v LED's in cosplay costumes. Very light weight with easy battery insertion. Remove battery using a small flat headed screwdriver.

Either buy the plain battery holder (you get two) and simply solder wires to them.

Or buy the battery holder with a battery (you get two of each) and simply solder wires to them.